package pl.wr.particle.def.matter.elementary.hypothetical.others;

import pl.wr.particle.def.matter.typeparticle.IHypotethicalParticle;

/**
 * In particle physics, W' and Z' bosons (or W-prime and Z-prime bosons) refer
 * to hypothetical new gauge bosons that arise from extensions of the
 * electroweak symmetry of the Standard Model. They are named in analogy with
 * the Standard Model W and Z bosons.
 * 
 * W' bosons often arise in models with an extra SU(2) gauge group. SU(2) ×
 * SU(2) is spontaneously broken to the diagonal subgroup SU(2)W which
 * corresponds to the electroweak SU(2). More generally, we might have n copies
 * of SU(2), which are then broken down to a diagonal SU(2)W. This gives rise to
 * n−1 W+', W−' and Z' bosons. Such models might arise from quiver diagram, for
 * example. In order for the W' bosons to couple to isospin, the extra SU(2) and
 * the Standard Model SU(2) must mix; one copy of SU(2) must break around the
 * TeV scale (to get W' bosons with a TeV mass) leaving a second SU(2) for the
 * Standard Model. This happens in Little Higgs models that contain more than
 * one copy of SU(2). Because the W' comes from the breaking of an SU(2), it is
 * generically accompanied by a Z' boson of (almost) the same mass and with
 * couplings related to the W' couplings. Another model with W' bosons but
 * without an additional SU(2) factor is the so-called 331 model with β = ±
 * 1/√3. The symmetry breaking chain SU(3)L × U(1)W → SU(2)W × U(1)Y leads to a
 * pair of W'± bosons and three Z' bosons. W' bosons also arise in Kaluza-Klein
 * theories with SU(2) in the bulk.
 * 
 * @version 1.0
 * @author wieslaw.rodak
 *
 */
public interface IWprimeBoson extends IHypotethicalParticle{

	String SYMBOL = "W'";
}
